Richard Castle: [puts down letter and looks eager] Shoot.
Kate Beckett: Why are you here? You don't care about the victims so you aren't here for justice. You don't care that the guy is aping your books, so you aren't here because you're outraged. So what is it, Rick? Are you here to annoy me?
Richard Castle: I'm here for the story.
Kate Beckett: The story?
Richard Castle: Why those people? Why those murders?
Kate Beckett: Sometimes, there is no story. Sometimes, the guy is just a psychopath.
Richard Castle: [scoffs] There's always a story, always a chain of events that makes everything make sense. Take you for example. Under normal circumstances, you should not be here. Most smart good looking women become lawyers, not cops. And yet here you are. Why?
Kate Beckett: I don't know, Rick. You're the novelist. You tell me.
Richard Castle: Well, you're not bridge-and-tunnel. No trace of the boroughs when you talk. So that means Manhattan. That means money. You went to college, probably a pretty good one. You had options. Yeah, you had a lot of options, more socailly acceptable options. But you still chose this. That tells me, something happened. Not to you. No, you're wounded, but you're not that wounded. No, it was someone you care about, it was someone you loved. And you probably could have lived with that but the person responsible was never caught.
Richard Castle: [silence]
Richard Castle: And that Detective Beckett, is why you are here.
Kate Beckett: Cute trick. But don't think you know me.
Richard Castle: The point is there's always a story. You just have to find it.
Kate Beckett: [opens up letter and eyes grow wide] I think I just did.
[shows Castle letter with a drawing of the crime scene]
(There are no hints/clues in this flavor or in any flavor of the vote counts or death scenes. It's for entertainment purposes.)